CVE-2026-80580

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> fbdev: bound mode sysfs output to the sysfs buffer<br /> <br /> mode_string() uses snprintf() which can return a value larger than the<br /> remaining buffer space. show_modes() accumulates the return value into i<br /> without checking whether i has reached PAGE_SIZE, causing the offset to<br /> advance past the sysfs buffer if the modelist is long enough.<br /> <br /> Add a size parameter to mode_string() and use scnprintf() to return<br /> only the bytes actually written. Add an early return when offset<br /> already exceeds the buffer. In show_modes(), stop accumulating once<br /> the buffer is full.